Load Specifications
Load data in caliber 8 x 75 RS with .323 | 220gr | Brenneke TOG bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Hodgdon Superformance.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 48,573 psi | 88% | 2438 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 46,934 psi | 85% | 2434 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,585 psi | 83% | 2513 fps | 98.6% |
| Accurate 4064 | <<locked>> | 84% | 48,762 psi | 88% | 2484 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 48,109 psi | 87% | 2566 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 86% | 49,574 psi | 90% | 2510 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 49,835 psi | 90% | 2602 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 47,790 psi | 87% | 2612 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 49,719 psi | 90% | 2533 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 47,123 psi | 86% | 2503 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 49,443 psi | 90% | 2618 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 46,862 psi | 85% | 2595 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,834 psi | 89% | 2589 fps | 97% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,788 psi | 83% | 2585 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,047 psi | 78% | 2536 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,811 psi | 69% | 2454 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,443 psi | 88% | 2700 fps | 99.9% |
| Bofors RP3 | <<locked>> | 84% | 46,876 psi | 85% | 2497 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,788 psi | 83% | 2585 fps | 96.5% |
| Bofors RP7 | <<locked>> | 88% | 47,311 psi | 86% | 2477 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 84% | 47,616 psi | 86% | 2510 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 90% | 47,398 psi | 86% | 2562 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 88% | 48,109 psi | 87% | 2530 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 49,429 psi | 90% | 2552 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 48,414 psi | 88% | 2546 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 47,007 psi | 85% | 2589 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,998 psi | 65% | 1572 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 49,124 psi | 89% | 2493 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 48,718 psi | 88% | 2474 fps | 98.2% |
| IMR 4350 | <<locked>> | 92% | 47,543 psi | 86% | 2507 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,820 psi | 89% | 2503 fps | 98.2% |
| IMR 4831 | <<locked>> | 94% | 48,892 psi | 89% | 2562 fps | 99.9% |
| IMR 4895 | <<locked>> | 82% | 48,298 psi | 88% | 2530 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 49,124 psi | 89% | 2490 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 48,530 psi | 88% | 2503 fps | 99.2% |
| Lovex S070 | <<locked>> | 92% | 49,385 psi | 90% | 2539 fps | 98.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,768 psi | 69% | 2375 fps | 96.9% |
| Norma 203B | <<locked>> | 84% | 49,559 psi | 90% | 2539 fps | 100% |
| Norma 204 | <<locked>> | 92% | 47,471 psi | 86% | 2543 fps | 96.4% |
| Norma MRPᴾ | <<locked>> | 100% | 48,124 psi | 87% | 2661 fps | 98.3% |
| Norma URP | <<locked>> | 92% | 47,616 psi | 86% | 2559 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 84% | 49,530 psi | 90% | 2559 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 49,327 psi | 90% | 2602 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,550 psi | 66% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 47,863 psi | 87% | 2493 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 49,850 psi | 90% | 2641 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 47,776 psi | 87% | 2589 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 47,007 psi | 85% | 2608 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 82% | 48,109 psi | 87% | 2457 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 47,007 psi | 85% | 2493 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 47,572 psi | 86% | 2572 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 88% | 47,311 psi | 86% | 2477 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 48,530 psi | 88% | 2503 fps | 99.2% |
| Shooters World Precision | <<locked>> | 84% | 49,124 psi | 89% | 2490 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 49,385 psi | 90% | 2539 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 48,370 psi | 88% | 2549 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 49,197 psi | 89% | 2405 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 48,254 psi | 88% | 2457 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 47,108 psi | 85% | 2566 fps | 96.8% |
| Somchem S355 | <<locked>> | 86% | 47,442 psi | 86% | 2493 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 48,921 psi | 89% | 2608 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 48,457 psi | 88% | 2556 fps | 97.8% |
| Vihtavuori N135 | <<locked>> | 82% | 48,124 psi | 87% | 2428 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 48,370 psi | 88% | 2438 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 48,501 psi | 88% | 2474 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 49,617 psi | 90% | 2552 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,570 psi | 81% | 2480 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 84% | 49,748 psi | 90% | 2480 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 48,849 psi | 89% | 2559 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,790 psi | 87% | 2605 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 49,153 psi | 89% | 2526 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 47,630 psi | 86% | 2566 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,551 psi | 70% | 2572 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,356 psi | 88% | 2546 fps | 96.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 45,382 psi | 82% | 2395 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,019 psi | 80% | 2385 fps | 96.5% |
| Accurate 3100 | <<locked>> | 90% | 32,518 psi | 59% | 2267 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,946 psi | 78% | 2398 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,894 psi | 58% | 2260 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 80% | 41,408 psi | 75% | 2375 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 43,918 psi | 80% | 2497 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,512 psi | 81% | 2556 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,292 psi | 75% | 2395 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,121 psi | 80% | 2454 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,039 psi | 58% | 2274 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,752 psi | 65% | 2388 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,134 psi | 78% | 2490 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 42,873 psi | 78% | 2533 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 82% | 24,801 psi | 45% | 2103 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,504 psi | 61% | 2349 fps | 95.8% |
| Alliant Reloder-26 | 58.4 gr | 86% | 29,791 psi | 54% | 2303 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 41,220 psi | 75% | 2405 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 42,873 psi | 78% | 2533 fps | 95.6% |
| Bofors RP7 | <<locked>> | 82% | 39,175 psi | 71% | 2333 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 41,742 psi | 76% | 2408 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 82% | 36,376 psi | 66% | 2356 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 84% | 42,279 psi | 77% | 2425 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,559 psi | 54% | 2185 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,324 psi | 82% | 2497 fps | 100% |
| Hodgdon Superformance | 58.8 gr | 84% | 38,101 psi | 69% | 2418 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 49% | 1398 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,526 psi | 79% | 2405 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,701 psi | 83% | 2425 fps | 97.7% |
| IMR 4350 | <<locked>> | 86% | 39,421 psi | 72% | 2362 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,218 psi | 69% | 2313 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 31,009 psi | 56% | 2224 fps | 96.5% |
| IMR 4895 | <<locked>> | 80% | 45,237 psi | 82% | 2480 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 43,569 psi | 79% | 2405 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,723 psi | 65% | 2267 fps | 96.5% |
| Lovex S070 | <<locked>> | 82% | 36,114 psi | 66% | 2293 fps | 95.4% |
| Lovex S071 | <<locked>> | 96% | 33,257 psi | 60% | 2283 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 43,497 psi | 79% | 2441 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 44,440 psi | 81% | 2490 fps | 95.6% |
| Norma MRP | <<locked>> | 92% | 36,767 psi | 67% | 2438 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 32,213 psi | 58% | 2264 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 80% | 43,236 psi | 78% | 2461 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 33,489 psi | 61% | 2300 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,340 psi | 50% | 1437 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,090 psi | 76% | 2395 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,014 psi | 69% | 2441 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,691 psi | 57% | 2280 fps | 96.3% |
| ReloadSwiss RS 70 | 53.8 gr | 80% | 31,401 psi | 57% | 2277 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 45,281 psi | 82% | 2415 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,798 psi | 70% | 2356 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 94% | 41,771 psi | 76% | 2470 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 82% | 39,175 psi | 71% | 2333 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,723 psi | 65% | 2267 fps | 96.5% |
| Shooters World Precision | <<locked>> | 80% | 43,569 psi | 79% | 2405 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 36,114 psi | 66% | 2293 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,726 psi | 72% | 2402 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,857 psi | 74% | 2283 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,260 psi | 68% | 2264 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 41,394 psi | 75% | 2464 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 39,349 psi | 71% | 2356 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 28,964 psi | 53% | 2224 fps | 98.8% |
| Somchem S385 | <<locked>> | 92% | 39,755 psi | 72% | 2405 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 45,194 psi | 82% | 2385 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,556 psi | 83% | 2398 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,565 psi | 68% | 2297 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 33,504 psi | 61% | 2260 fps | 97.1% |
| Vihtavuori N165 | <<locked>> | 98% | 41,742 psi | 76% | 2431 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 43,772 psi | 79% | 2392 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,982 psi | 60% | 2264 fps | 96.7% |
| Vihtavuori N555 | <<locked>> | 82% | 26,600 psi | 48% | 2169 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,098 psi | 60% | 2241 fps | 98.9% |
| Winchester 760 | <<locked>> | 82% | 36,550 psi | 66% | 2359 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 86% | 24,685 psi | 45% | 2169 fps | 95.4% |
| Winchester Supreme 780 | <<locked>> | 96% | 42,192 psi | 77% | 2441 fps | 95.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 74 powders for 8 x 75 RS loaded with the .323 | 220gr | Brenneke TOG. Alliant Reloder-26 delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,700 fps. Accurate 3100 gives the best case fill at 100 %, and 74 of the 74 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.323" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for 8 x 75 RS with the .323 | 220gr | Brenneke TOG they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.